Path Traversal in Flightphp Core
CVE-2026-42549
Flight is an extensible micro-framework for PHP. Prior to 3.18.1, the make:controller CLI command calls mkdir(..., recursive: true) on a path built from the user-supplied controller name, before Nette's class-name validation runs. The clas…
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.000 (0.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
Affected products
- Flightphp Core — versions < 3.18.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-42549?
- CVE-2026-42549 is a medium-severity vulnerability in Flightphp Core, classified under Path Traversal. CVSS score: 4.4/10. Published 2026-05-13.
- How severe is CVE-2026-42549?
- Medium severity. CVSS v3 base score is 4.4 out of 10.